Created attachment 200509 [details] patch USES=compiler:c++11-lang is necessary to build on GCC architectures. Tested on powerpc64 and amd64. Hardware sponsored by IntegriCloud.
A commit references this bug: Author: linimon Date: Wed Dec 26 12:36:53 UTC 2018 New revision: 488382 URL: https://svnweb.freebsd.org/changeset/ports/488382 Log: USES=compiler:c++11-lang is necessary to build on GCC-based architectures. PR: 234405 Submitted by: Piotr Kubaj Approved by: portmgr (tier-2 blanket) Changes: head/math/qwtplot3d/Makefile